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Agro-Industrial Waste for Sustainable Green Production: Advancements and Challenges

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Green Sustainable Science and Technology".

Deadline for manuscript submissions: 20 December 2025 | Viewed by 2028

Special Issue Editor


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Guest Editor
School of Science and the Environment, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G4, Canada
Interests: food metabolomics; food chemistry; byproducts of the agrifood sector; gas chromatography-mass spectrometry (GC-MS); gas chromatography-flame ionization detector (GC-FID); liquid chromatography-mass spectrometry (LC-MS); sensory analysis
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Special Issue Information

Dear Colleagues,

The growing emphasis on sustainability and circular economy principles has underscored the need for innovative strategies to reduce our environmental impact. Agro-industrial waste, produced in large volumes globally, remains an underutilized resource with significant potential for green production and value-added applications.

This Special Issue invites high-quality research focused on converting agro-industrial residues into sustainable products, materials, bioenergy, and biochemicals. We welcome contributions that highlight advancements, address challenges, and explore cross-sectoral opportunities for waste valorization.

Topics of interest include, but are not limited to, the following:

  • The green extraction and recovery of bioactive compounds;
  • Valorization strategies in food, agriculture, and biotechnology;
  • The isolation and application of bioactives from agro-industrial waste;
  • Environmental and economic assessments of waste utilization processes;
  • Policy, regulatory, and logistical barriers to scaling up sustainable production;
  • Product development efforts aimed at waste reduction in food production.

We encourage the submission of original research articles, reviews, and case studies. This Special Issue aims to foster interdisciplinary collaboration and provide a platform for advancing sustainable solutions in agro-industrial waste management.

Dr. Charles F. Manful
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • sustainability
  • value addition
  • antioxidants
  • polyphenols
  • chronic diseases
  • pollution reduction

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Published Papers (1 paper)

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Research

28 pages, 2041 KB  
Article
Sustainable Recycling of Used Cooking Oils Through the Production of Biodegradable Antimicrobial Soaps
by Mirel Glevitzky, Mihai-Teopent Corcheş, Sorina Gabriela Şerban, Maria-Laura Strugariu, Imre Kiss and Mihaela Laura Vică
Appl. Sci. 2025, 15(21), 11472; https://doi.org/10.3390/app152111472 - 27 Oct 2025
Viewed by 1833
Abstract
The valorization of waste materials is essential for sustainability, with used cooking oils (UCOs) offering potential for transformation into valuable functional products. The study investigates the oxidative stability of sunflower and olive oils subjected to high temperatures (160–200 °C) and frying on their [...] Read more.
The valorization of waste materials is essential for sustainability, with used cooking oils (UCOs) offering potential for transformation into valuable functional products. The study investigates the oxidative stability of sunflower and olive oils subjected to high temperatures (160–200 °C) and frying on their physico-chemical properties (acidity, peroxide and iodine value, total polar compounds). Significant deterioration occurred above 180 °C, with increased peroxide and polar compounds and reduced iodine values. A technological process for the purification and saponification of UCOs (sunflower, olive, and palm oils) was developed, demonstrating the potential to transform pollutant waste into a valuable and sustainable product—soap. The incorporation of oregano and thyme essential oils (EOs), identified by GC-FID as rich sources of carvacrol, thymol, p-cymene, and limonene, improved the functional properties of the soaps. The antimicrobial activity of soaps largely relates to their alkaline pH, while the incorporation of EOs contributes to additional antimicrobial effects, obtaining zones of inhibition of up to 10.8 mm against Staphylococcus aureus and up to 7.6 mm against Escherichia coli for palm oil. The study highlights a sustainable approach that transforms waste oils into functional soaps with EOs for added antimicrobial benefits. Full article
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